Historical reference: Do not rely on this information. It is very old. About this collection
Galerius, Valerius Maximus (d. 317), a Roman Emperor, who was born in Dacia, and served with distinction in the army. In 292 Diocletian gave Galerius his daughter in marriage, and made him Caesar. He defeated the Persians, and when in 305 Diocletian abdicated, Galerius took the eastern half of the Empire, retaining the power till his death, while Constantius ruled in the West. Galerius was a good soldier and commander.